C/2025 R3 (PANSTARRS) (Record n° 31348)
NASA/JPL elements
IAU/MPC elements
On 2026 Apr 15 03h45 UT by Nicolas Biver
(Copyright Nicolas Biver)Coma Total magnitude (m1) 5.0 Aperture radius used for m1 2.74 ' Nuclear magnitude (m2) 7.6 Aperture radius used for m2 8.24 " Coma diameter 5.2 ' Coma condensation degree
(DC) 6 Tail length 0.8 ° Tail position angle
(PA) 285 ° Afrho 4817 cm Afrho error 84 cm r (dist/Sun) 0.512 AU d (dist/Earth) 0.739 AU Instrumental configuration Config2 Instrument Dobson T256mm Instrument type Newton Instrument aperture (0=naked eye) 256 mm Instrument focale length 1269 mm Instrument focale/diameter 4.95 Filter(s) None Camera Sony alpha7s Sensor DC Sensor size 36x24 mm2 Sensor pixels number 4240x2832 Sensor temperature 13 °C Binning 2x2 Mount Dobson Motorization No Autoguide No Exposure total time 32.8 s Exposure details 98x1/4+25x1/3s Sky transparency (naked eye max mag) 4.5 Seeing 2 Moon phase 149 ° Moon elongation 21 ° Air mass 4.6 Location Versailles Reference stars catalog APASS Used softwares IRIS Resulting picture sampling (scale) 2.75 "/pix Image processing binning flat alignement somme alignement cométaire somme retrait gradient Remarks or comments afrho couche R (RAW) Observation submission date 2026 Apr 18 19h23m36s Observation modification date 2026 Apr 18 19h29m41s